Traverse mechanism for warper-combs.



No. 774,696. PATENTED NOV. 8, 1904.

A. E RHOADES. TRAVERSE MECHANISM FOR WARPER OOMBS.

APPLIGATION FILED JUNE 23, 1904.

I0 MODEL. 3 8HEETSSHEBT 1- PATENTED NOV. 8, 1904.

I A. E. RHOADES. TRAVERSE MECHANISM FOR WARPER GOMBS.

APPLICATION FILED JUNE 23, 1904.

3 SHEETSSHBET 2.

NO MODEL.

PATENTED NOV. 8, 1904.

A. E. RHOADES. TRAVERSE MECHANISM FOR WARPER GOMBS.

APPLICATION FILED JUNE 28,1904.

mums-sum a.

N0 MODEL.

UNITED STATES Patented. November 8, 1904.

PATENT OFFICE.

ALONZO RHOADES, OF HOPEDALE, MASSACHUSETTS,ASSIGNOR TO DRAPER COMPANY,OF HOPEDALE, MASSACHUSETTS, A CORPORA- TION OF MAINE.

TRAVERSE MECHANISM FOR WARPER-COIVIBS.

SPECIFICATION forming part of Letters Patent No. 774,696, dated November8, 1904.

Application filed June 23, 1904..

To (0Z7 whmn it may concern:

Be it known that I, ALoNzo E. RHoADEs, a

citizen of the United States, residing in Hope dale, in the county ofWorcester and State of Massachusetts, have invented an Improvement inTraverse Mechanism for VVarper- Combs, of which thefollowingdescription, in connection with the accompanying drawings, is aspecification, like characters on the drawings representing like parts.

This invention relates to warping-machines wherein the comb throughwhich the warps pass to the beam is traversed or reciprocated to lay thewarp evenly upon the beam.

In some special classes of warping the adjacent warp-threads areseparated from each other by a considerable space, varying from, say,one-quarter of an inch to an inch, and in such warping the comb isreciprocated to lay the several warp-threads in contiguous groups uponthe beam. Heretofore, so far as I am aware, the traverse of the comb hasbeen effected by or through a crank-motion and trouble has beenexperienced because of the ridged or corrugated winding of the warp uponthe beam. This is due to the peculiarity inherent in a crank-motionbecause of the dwell when the crank travels over dead-center, the resultbeing a dwell of the warper-comb at such times, while the winding of thewarp upon the beam continues. The mass of warp laid is consequently alittle higher at each end of the wound mass than between the ends, itbeing understood that each warp-thread, or it may be a group ofwarp-threads, is laid upon the beam [in a mass the width of which isequal to the length of the traverse or stroke of the comb. Such windingis objectionable for various reasons, one of which is the variation intension of the warps when unwinding from the beam in the subsequenttreatment of the warps-that is, when the warps are unwinding from theends of the yarn masses the tensionwill be different from that when thewarps are drawing off from the portions of the yarn masses of smallerdiameter.

My present invention has for its object the production of novel traversemechanism for Seria Ila 213,802. (N0 model.)

warper-combs,wl1ereby the objections hereinbefore noted are obviated,the several adjacent yarn masses as laid upon the beam having a uniformdiameter from end to end.

The various novel features of my invention will be fully described inthe subjoined specification and particularly pointed out in thefollowing claims.

Figure 1 is an end elevation of a warpingmachine of substantiallywell-known construction with one embodiment of my novel traversemechanism for the comb applied thereto, a portion of the beam beingbroken out to economize space. Fig. 2 is a rear elevation, centrallybroken out and on a larger scale, of the comb, its carriers or supports,and a portion of the traverse mechanism, the combcentering means beingalso shown. Fig. 3 is a sectional detail,enlarged,on the line 3 3, Fig.1, looking toward the left, of a portion of the traverse mechanism,showing the traversecam and the means for adjusting the stroke of thecomb. Fig. 4 isa transverse section on the line 4 4, Fig. 2, looking tothe right, of one of the comb-supports and a portion of the transmittingmeans between it and the traverse-cam. Fig. 5 is a sectional detail onthe line 5-5, Fig. 4, of a portion of the appa' .ratus shown in Fig. 4,to be referred to. Fig. 6 is a perspective view, detached, of thecasting shown in Figs. 2 and 4 secured to the lefthand end of the comb,said casting having a supporting-bearing for one of the journals of thewhip or guide roll. Fig. 7 is an enlarged sectional detail on the line 77, Fig. 1, looking toward the right, of the means for imparting movementto the traverse-cam. Fig. 8 is a side view of the traverse-cam detached;and Fig. ,9 is a sectional detail on the line 9 9, Fig.' 3, of theadjusting device by which the traverse of the comb is regulated.

The warper in connection with which 1 have herein illustrated mypresent'invention is substantially such as shownin United States PatentNo. 624,541, and, having more especial reference to Fig. 1, thewinding-drum D, beam B rocker-arm d, having the pivoted latch d thereon,the shipper b and knock-off lever 6, and the normally vibrating arm a,ful crumcd at a and having a stud a to cooperate with the latch (Z andrelease the shipper when the arm a is arrested, as when a warpthreadbreaks or runs out, may be and are link 4 with the lower end of thevibrator a,

so that the latter rocks the bell-crank, an inwardly-extended stud 5 onthe vibrator, Fig. 7, connecting the latter with the link 4. The shorterarm 2 of the bell-crank has pivoted thereon at6an upturned, elongated,and bent link 7, as herein shown, jointed at its upper end at 8 to apawl-carrier 9, whose hub 10 is mounted to rock on a short rotatableshaft 11. As best shown in Fig. 1, a stand 12, secured to thewarper-frame, has bearings 13 14, in which the shaft is mounted, anupright web 13 on the bearing 13 having a tubular boss 15 for a purposeto be described. Between the bearing 13 and the pawl-carrier the hub ofa ratchet 16 is secured to the shaft, and a cooperating pawl 17 isfulcrumed at 18 on the outer end of the pawl-carrier, the latter havingan upturned ear 19, (best shown in Fig. 7,) carrying a pin 20, which isextended loosely through a hole in the tail 21 of the pawl, the tailbeing offset, as shown in Fig. 1. A spring 8 is coiled around the pinbeneath the tail and serves to keep the pawl in cooperative engagementwith the ratchet, and a spring-detent pawl or finger 22 preventsretrograde rotation of the ratchet. Each vibration of the vibrator awill, through the described connections, operate the pawl-carrier andeffect the rotation of the ratchet 16 and shaft 11 one step.

A traverse-cam 23, (shown separately in Fig. 8,) is secured to the shaft11 at its rear end adjacent the bearing 13, said cam having a cam pathor groove 24 in its side, entered by a roller or other stud 25,projecting from the adjacent face of a traverse-lever 26, ful crumed at27 in the boss 15 and depending therefrom. In Fig. 3 the cam is shown inthe position corresponding to mid-stroke of the comb, and the cam-groove24 is substantially heart-shaped, providing for an immediate change ofmovement at the end of the comb-stroke without any dwell, the traversebeing uniform between the ends of the stroke. Such a cam, having nodwell portion, may be termed a continuous-motion cam.

The traverse-lever is undercut along its longitudinal edges (see Fig. 9)to receive a correspondingly-recessed block 28, having a prolongation atone side of the lever provided with a stud 29 for a purpose to bedescribed, the block being longitudinally adjustable on said lever 26and held in adjustedposition by a set-screw 30, engaging the face of thelever opposite that on which the stud is mounted. From an inspection ofFig. 3 it will be manifest that the nearer the block 28 to the free endof the traverse-lever 26 the greater will be the amplitude of its pathof movement, such amplitude decreasing as the block is moved nearer thefulcrum 27, the block being movable substantially the length of thelever.

The stud 29 enters a long slot 31 in an upturned transmitting-lever 32,fulcrumed at its lower end at 33 on a bracket 34 on the main frame, thelevers 26 and 32 having their ful era in parallelism, and, as shown inFig. 1, the levers swing in separate but parallel planes, the levers inFigs. 2 and 3 being shown at the instant they are in parallelismlongitudinally. The slot 31 permits the adjustment of the block 28 onthe traverse-lever, as hereinbefore described, and of course the swingof the transmitting-lever 32 will be the greater the nearer theadjustment of the block 28 to the lower or free end of thetraverse-lever.

When the block is opposite the stud 25, the stroke of the traverse andtransmitting levers will be just the same as the throw of the cam,increasingly greater as the block is moved downward, and less than thecam-throw as the block ismoved upward beyond the stud, so that byproperly adjusting said block the stroke of the comb can be variedwithin wide limits. The rotation of the traverse-cam is effected at aproper low speed by the means described, the step-by-step movement ofthe cam being convenient as the pawl is actuated by a vibrating memberof the machine, and, furthermore, said stepby-step movement takes theplace of speed-reducing gearing to bring the speed of rotation of thetraversecam down to the desired rate. By the stepby-step rotation of thetraverse-cam a practically uniform movement of the comb is securedthroughout the stroke, for each dwell is no greater than that requiredfor the comb to reverse its movement at the end of the stroke, and theyarn is consequently laid evenly.

Instead of having a continuous movement throughout the stroke with aconsiderable dwell at each end, as in the crank-actuated traverse, withconsequent building up of the yarn at the ends of the traverse, thepresent structure divides the large dwell up into a multitude of smalldwells distributed uniformly and evenly throughout the stroke, with nogreater pause at the end of the traverse than occurs at any of theintermediate dwells.

Referring to Fig. l, I have shown a boss 35 on the rear face of thetransmitting-lever 32, the back of the boss being grooved in continu:ation of the slot 31 to permit free movement of the stud 29 when theblock 28 is adjusted,

the boss having projecting from it at right angles to the lever a stud36. This stud loosely enters a hub 37, Fig. 1, laterally extended fromone end of a long link 38, extended inward toward the center of thewarping-machine and fulcrumed at its opposite end (see Fig. 2) at 39 toan elongated arm 40, secured to or forming a part of one of theoscillating comb-carriers.

The rear elevation, Fig. 2, in connection with Fig.4, best illustratesthe construction of the comb-carriers, of which there are two, one ateach side of the machine, and practically alike, save that the one atthe right has no arm corresponding to the fulcrum-arm 40 for the link 38described. A bracket 41 on the main frame, Fig. 1, has fulcrumed thereonat 42the hub 43 of the comb-carrier, comprising an elongated upturnedbody 44, provided with a head 45, having upturned ears 46, with theirinner faces parallel to receive freely between them the comb-box O,which latter may be of usual construction and provided with teeth ordents (1*. As shown by dotted lines, Fig.2, the top of the head betweenthe ears is slightly rounded at each end at 47 and it isrecessed orgrooved at 48 in the direction of the length of the comb, Fig. 4,

for a purpose to be described, the head at front and rear of the groovepresenting seats on which the comb is vertically sustained. In practicethe seats are very flat arcs struck from the center of the fulcrum 42 asa center. Below the rearmost ear 46 a cylindrical boss 49 is formed,having a circular bore to receive a round block 50, Figs. 2 and 5,having a transverse threaded hole 51. passage 52 therein intersectingits circular bore and, as shown in Fig. 5, of greater diameter than thethreaded hole 51 in the block 50. It may be stated here that through theconnecting-link 38 the comb-carrier described will be oscillated on itsfulcrum 42 by or through the rotation of the traverse cam and theintermediate traverse and transmitting levers 26 32 and their adjustableconnection, such oscillation being transmitted to the comb by means nowto be described.

A casting (shown separately in Fig. 6) is secured to each end of thecomb-box C, said casting comprising an elongated base 53, havinga planeupper face, (to rest against the bottom of the combbox,) with alongitudinal central rib 54 on its under face and convex incross-section. (See Figs. 4 and 6.) At its outer end the base isprovided with a depending leg 55, having a hub '56 at its lower end,said leg being located at the edge of the base nearer the main frame ofthe machine, while at its opposite edge and nearer its inner end thebase is provided with a broad upturned flat ear 57. A web 58 on theouter face of the ear carries a sleeve-like bearing 59, parallel to thecomb-box and'adapted to support The boss 49 has a one of the journals taof the whip-roll or guide WV, Fig. 1, over which the warps pass 61,having an enlarged head 62, apertured to rotatably receive the reducedend of an adjusting-screw 63, which is screwed into the threaded hole 51of the round block 50, Figs. 2 and 4, the screw passing through thepassage 52 in the boss 49, the passage being large enough to affordample clearance for the screw. At its outer end the latter has securedto it a circular nut or head 64, by means of which the screw can bereadily rotated in one or the other direction for purposes ofadjustment. As shown in Fig. 4, a pin retains the stud 61 in place inthe hub 56.

Inasmuch as the comb-box and casting are rigidly connected, the screw 63forms a positive adjustable connection between the combboX and theadjacent comb-carrier, so that oscillation of the latter by or throughthe traverse-cam will impart the reciprocation or traverse of the comb.The desired traversehaving been attained by adjustment of thetraverse-lever block 28, the comb itself is then centered, as required,by proper rotation of the centering-screw 63 at the left, Fig. 2, sothat when the comb-carriers are at either end of their strokes the combwill be in position to properly lay the warp at either end of the beam BVhen the centering of the comb is attained, the right-handadjusting-screw 63, Fig. 2, will be turned in or out, as required, tolevel the comb should it have been lifted at either end by the centeringadjustment, as may happen owing to the manner in which the comb issupported, such leveling bringing the bodies 44 of the two combcarriersinto parallelism. The screws 63 are in the nature oflongitudinallyadjustable links pivotally connected at 61 and 50 with thecomb and the comb-carrier, respectively, it

being obvious that the oscillation of the left hand comb-carrier, F ig.2, by positive connection with the traverse-cam will effect thereciprocation of the comb through the screws 63, the latter beingalternately under tension and compression.

When the comb-carriers are at mid-position, as shown in Fig. 2, theywill be at right angles to the comb-box, and the casting-bases 53 restsquarely upon the seats formed by the top of the heads 45, and there isa slightroll ing contact between the two parts as the combcarriersoscillate. The rounding of the seatcorners 47 prevents any lifting orunseating of the bases when the comb-carriers are at the ends of theirstrokes, and the recesses &8 provide clearance at the same time for theguideribs 5 I, which latter not only strengthen the bases of thecastings, but also act as guides for the comb-box.

The adjusting-screws 63 rock on their fulcra 61 in upright planes, andtheir inner ends change their angular position relatively to thecomb-carriers, such changes being permitted by the rocker-blocks 50 andthe clearancepassages 52 in the bosses 4E9.

Inasmuch as the bearings 59 for the whip or guide roll W are rigid partsof the castings secured to the comb-box, it follows that said roll andcomb will be traversed in unison to lay the warp smoothly and evenlyupon the beam.

Along transmitting-link, as 38, is employed between the adjacentcomb-carrier and the traverse mechanism in order to provide for thevarious desired adjustments without cramping the parts or theirmovements and to give a smooth free movement to the comb.

My invention is not restricted to the precise construction andarrangement herein shown and described, as the same may be changed ormodified in various particulars by those skilled in the art withoutdeparting from the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a warping-machine, a comb, mechanism to traverse the same,including a rotatable cam, and means to rotate the cam step by step.

2. In awarping-machine, a comb, a whip or guide roll adjacent thereto,and means, including a rotatable, continuousmotion cam, to traverse saidcomb and roll in unison.

3. In a warping-machine, a comb, comb-carriers on which it is supported,positive and adjustable connections between but permitting relativemovement of the comb and combcarriers to center and level the comb, andmeans to rock the comb-carriers and by their oscillation effect traverseof the comb.

I. In a warping-machine, a comb, its box, upturned, rockingcomb-carriers having seats upon which the comb-box is supported,positive connections between the comb-box and the comb-carriers,permitting relative angular movement of the same, and mechanism,including a traverse-cam, to oscillate said combcarriers and therebycause traverse of the comb.

5. In a warping-machine, a comb, its box, castings rigidly connectedwith the ends thereof and each having a bearing, a whip or guide rollmounted in said bearings, oscillating supports for the comb-box, andmechanism to oscillate the same and thereby traverse the comb and rollin unison.

6. In a machine of the class described, a comb, oscillatingcomb-carriers with which it is connected, traverse mechanism, includinga rotatable cam and adjustable transmitting connections between it andthe comb-carriers, a ratchet rotatable with the cam, and a cooperatingactuating-pawl operated from amoving part of the machine, to rotate thecam step by step.

7 In a machine of the class described, a comb, oscillatingcomb-carriers, adapted to support and guide the comb andangularlymovable with relation thereto, means to center and level thecomb and connect it with the comb-carriers, a traverse-cam, andconnections between it and the comb-carriers to oscillate the latter andeffect traverse of the comb.

8. In a machine of the class described, a continuous-rnotiontraverse-cam, means to rotate it step by step, a comb, transmittingconnections between it and the cam to effect traverse of the comb, andmeans to adjust said connections to vary the stroke of the combtraverse.

9. In a machine of the class described. upturned comb-carriers fulcrumedat their lower ends, a comb connected therewith, one of said carriershaving an elongated arm near its up-v per end, a rotatable traverse-cam,traverse and transmitting levers adjacent each other and fulcrumed attheir opposite ends, a follower-roll on the traverse-lever andcooperating with the cam, a connection between said levers, adjustablelongitudinally thereof, to vary the stroke of the transmitting-lever,and a link pivotally connected with the latter and with the comb-carrierarm, to effect oscillation of the comb-carriers and traverse of thecomb.

10. In a machine of the class described, a comb, oscillating supportingmeans therefor, a rotatable traverse-cam, a depending traverse-leverhaving a cooperating roll and fulcrumed at its upper end, an upturned,adjacent transmi tting-lever fulcrumed at its lower end, said leversswinging in parallel planes, a connection between said levers andadjustable toward and from the fulcrum of the traverse-lever, to varythe amplitude of their oscillation, and apositive connection between thetransmitting-lever and the comb-supporting means, to actuate the sameand efiect traverse of the comb.

11. In a machine of the class described, a comb and comb boX, upturnedoscillating comb-carriers having their heads shaped to receive andsupport the comb-box, a depending leg attached to each end of thelatter, a longitudinally-adjustable connection between each leg and theadjacent comb-carrier, fulcrumed on the leg and having a rockingattachment with the comb-carrier, whereby the comb may be centered andleveled, and traverse mechanism operatively connected with saidcomb-carriers, to oscillate the same and eifect traverse of the cam.

12. In a machine of the class described, a comb and comb box, upturnedoscillating comb-carriers having their heads shaped to receive andsupport the comb-box, a depending leg attached to each end of thelatter, a longitudinally-adjustable connection between each leg and theadjacent comb-carrier, fulcrumed on the leg and having a rockingattachment with the comb-carrier, whereby the comb may be centered andleveled, arotatable traverse-cam, adjustable connections between it andthe comb-carriers, to oscillate the latter and traverse the comb, andmeans to rotate the traverse-cam step by step.

13. In a machine of the class described, a comb and comb-box, upturned,oscillating comb-carriers having their heads shaped to receive andsupport the comb-box, a depending leg attached to each end of thelatter, a longitudinally-adjustable connection between each leg and theadjacent comb-carrier, fulcrumed on the leg and having a rockingattachment with the comb-carrier, whereby the comb maybe centered andleveled, acontinuous-motion traverse-cam, a pawl-and-ratchetactuatingdevice to rotate the cam step by step, and adjustable transmittingconnections between the cam and comb-carriers to oscillate the same. 7

1%. In a machine of the class described, oscillating comb-carrierspositively connected with and having angular movement relative to thecomb, means on said comb-carriers to retain the comb in operativeposition, a rotatablecontinuous-motion traverse-cam, and adjustableconnections between it and the comb-carriers to oscillate the latter andeffect uniform traverse of the comb.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ALONZO E. RHOADES.

Witnesses:

GEORGE OTIS DRAPER, ERNEST W. VVOOD.

